✨ Energy Reliability Performance Measures




22 NOVEMBER 2006 NEW ZEALAND GAZETTE, No. 146 4213

Requirement 21

Disclosure of reliability performance measures

  1. Total number of interruptions:
Network or generation owner Interruption class Classification of interruptions 2006 2005 2004 2003
Orion B Planned shutdowns 288 316 241 356
Orion C Unplanned cuts 499 462 403 611
Transpower A Planned shutdowns - 2 4 0
Transpower D Unplanned cuts 5 5 8 4

Total interruptions: | 792 | 785 | 656 | 971 |

Interruption classes E, F and G do not apply to the company and consequently results are all zero.

2 & 3 Interruption targets:

Network or generation owner Interruption class Classification of interruptions 2007 Average 2007 - 2011
Orion B Planned shutdowns 385 385
Orion C Unplanned cuts 555 555
  1. Proportion of 2006’s Class C interruptions not restored within:

(a) 3 hours 36.0%

(b) 24 hours 1.2%

5(a) Faults per 100 circuit-km of electric line:

Voltage 2006 2005 2004 2003
66kV 2.2 1.2 0.0 4.4
33kV 2.9 3.8 2.0 3.9
11kV 9.2 8.5 7.7 11.6
All 8.6 8.0 7.1 10.9

(b) & (c) Target number of faults per 100 circuit-km of electric line:

Voltage 2007 Average 2007 - 2011
66kV 2.0 2.0
33kV 4.0 4.0
11kV 12.0 12.0
All 11.2 11.2

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Online Sources for this page:

VUW Te Waharoa PDF NZ Gazette 2006, No 146


Gazette.govt.nz PDF NZ Gazette 2006, No 146





✨ LLM interpretation of page content

🏭 Disclosure of reliability performance measures (continued from previous page)

🏭 Trade, Customs & Industry
Energy Reliability, Interruption Statistics, Performance Measures, Electricity Supply, Orion, Transpower